This silicone gasket is the most common size used in home brewing and commercial breweries in the United States.

• 1.5” Tri Clamp Gaskets for all 1.5” Tri Clamp fittings.  
• Material: Silicone
  
• Temperature Range: -58ºF to 446ºF
• Inside Diameter: 1.375"
• Outside Diameter: 1.984"